Continuous ingot-heating furnace.



No. 822,380. PATENTED JUNE 5, 1906. W. R. MILLER & P. V. COLE.GONTIN'UOUS INGOT HEATING FURNACE.

APPLICATION FILED JULY 27.1905.

3 SHEETSSHEET 1.

No. 822,380. I PAT'ENTED JUNE 6, 1906. W. R. MILLER 6: P. .V- COLE.

CONTINUOUS INGOT HEATING FURNACE.

' APPLICATION FILED JULY 27,1905.

' a SHEETSSHBET 2.

Wawss es fnweninrs. 'fi'mw Q bJ/LZQA 6 Q. Q

No 822,380. PATENTED JUNEB, 1906. W. R. MIELER & P. V. COLE. CONTINUOUSINGOT. HEATWG FUREAOE APPLICATION FILED JULY 27,1905.

3 $HEETSSHBET 3 ii iizwssai .rrNrrnn STATES PORATION OF PENNSYLVANIA.

conrmuous INGOT-HEATING-FURNfluCE."

PATEN r WJLLIAM R. MILLER, OF rrrrssune, AND PAUL'V. CO E; OF AiLIiE-jGHENY, PENNSYLVANIA, ASSIGNORS TO THE ,ronrER- MILLER,

ENGINEERING COMPANY, or rrrrssuae, PENNSYLVANIA,-AOOR=.

To all whom it may concern.-

Be it known that we, WILLIAM R. MILLER,

A residing at Pittsburg, and PAUL V. COLE, re

siding at Allegheny, in the county of-Allegheny, State of Pennsylvania,citizens of the United States, have invented certain new and usefulImprovements in Continuous Ingot-Heating Furnaces, of which thefollowing is a specification, reference being had therein to theaccompanying drawings, forniing part of this speclfication, in wh1chFigurel is a vertical longitudinal sectional. view, partly broken away,of our improvedcontinuous ingot-heating furnace. "Fig. 2 is a similarhorizontalsectional view,ind1cated by the line H II of Fig. 1. Fig. 3 isan enlarged cross-sectional view, indicated by the line 111 III ofFig. 1. Fig. 4 is a sectional detail View showing one of the resilientmountings for the side bearing-rod. Fig. 5 is a view similar to Fig. 3',ind1catedby the line V V of Fig. 1. Fig. 6 is a detail viewillustratingthe automaticuncoupling of the ingotsbuggy and also showing theoperation of emerging from the water-seal trough.

- Our invention relates to im rovementsin continuous heating-furnaces oringots, bil lets, &c., and comprises a longitudinal furnace opgn ateachend, rovided with an areaway t ough which t e ingot-buggies'andingots pass upon supporting-tracks laid along the foundation, t efurnace being. pro: vided along its inner sides with Water-seal troughswith which downwardly-projecting water-seal flanges of the buggiescooperate in the manner hereinafter described.

- The invention also refers to the arrange-' ment of tracks whereby saidflanges enter and emerge from the troughs'at the'ends of more ful ing adoublearched roof composed of lower and up, er sections 4 5, with anintervening longitu inal air heating passage 6. Jit one end of thefurnace the roof structure is sloped upwardlytoward the end, as shown atthe left side of'Fig. 1-,provid1ng agas and air buggy mixture chamber 7,into the previouslyheated air is introduced through t e'terminalair-port 8, forming the delivery endlfof air ma aria, 5, 1906.

space 6, while gas is supplied fromapip'l'e .9, I

leading from a producer or'anysuitablef source of supply; The, fuelin.combustion circulates throughout the interion of were; .naoe toward theopposite end, the products' of combustion passing outwardlyf 'at 'oneo'rboth sides through outlet-pipes. 10, connect ed with a stack in anysuitable manner. each end the furnace is providedwith swing" ing orotherwise suitablyn oun'ted doors 11 12, adapted to fit down "over. or.across the ends of the ingot-buggies and tojclose the ends of'thefurnace against ,entranceof air or escape of the gases.

structure is preferably provided with a porting framework of structuralelemen sa,;

as'shown, or may be brace Wit nary buckstaves, as deslredl,

furnace and pre erably projecting outwardly The entire'ffurnace anysuitable constructiombut whic may be conveniently made of castings,a'sshown', in 'corporated with the furnace n'such a manner as to extendinwardlyj'beyond" the innerwall. line, as clearly shown in Fig; 3, sa-idtrou hs being kept filled'fwithwaterby any pipe connections. (Notshown-5) suita le 15 is t eingot-buggy provided with a. 's1 1*-'erimposed ingot-sup ortingstru'cture o'fjfre- Fractory material, theoundation' of the buggy being ofrany suitable constructionysuch as;shown in the drawings, and" particularl in Figs. 3 and 5. Thesupporting-plates'io the or any'suitable portion thereof I are provldedat each side withidownwardly pro 4 jecting flanges 16, adapted to,-be'immersed in water contained in troughs 14 at each s'ide, whereby a waterseal isprovided; so as to 'efs' fectually revent the issage'of air or;gasto or from t e furnace-chamber entir'elyalong each side thereof. w

As heretofore stated, the troughs 14 extend outwardl beyond the, ends ofthe furnace, and for t e purpose of im'rhersingthe flanges thereinto andcausing them toemeigeoutwardly therefrom the supporting tracks 1 uponwhich the buggiesfiare'mountedf slope upwardly at eaeh'endpffjtheeifurnace," as

clearly shown at 1'8, Fig.1, by which arrangement it will be seen thatas the buggies are advanced toward the furnace they will be graduallylowered, correspondingly lowering the flanges 16 into the troughs at thepoint of entrance, in which relation they will be maintained during thelongitudinal travel of the buggies due to the horizontal parallelism ofthe troughs and tracks. Likewise the flanges will be gradually raisedupwardly and out of engagement with the troughs as each buggy is drawnforwardly away from the other end of the furnace. 1t will be seen thatby this arrangement the immersing'and emergence stems 20, horizontallyarranged in receiving, "bearings 21, mounted against the inner sidesof'the structural frame elements 13. These stems 20 are provided withcoiled or spiral springs 22, which bear outwardly against the ends ofthe stems or against collars thereof and also against'inner suitablebearings. As

' thus mounted the rods or pipes 19 are forced outwardly into bearingengagement with the sides of the buggies, as shown, and tend to steadythem, providing a resilient bearing throughout the entire interior ofthe furnace and preventing contact with the sides theretops of stationarof by the buggies.

e buggies make an interfitting engagement with each other at the ends bymeans of a male and female joint 23, as clearly shown in Fi 1, theabutting faces of the buggies neat y fitting against'each other, wherebygas-tight joints are provided.

The buggies are coupled together by means .of a latch 24, ivoted. at oneend of each buggy on opposite sides at 25 and adapted to fit downwardlyover suitable pins 26, corres ondingly arranged at the meeting end ofthe adjacent buggy. By these devices the buggies are con led and heldtightly together as they are usfied or drawn through the furnace, and fdr the purpose of automatically uncoupling them as each succeeding buggyarrives at the exit end of the furnace the latches 24 are provided withsloping camabutments 27, arranged to engageover the posts or interferin-abutments 28; By these means the late es are disenga ed as each buggyarrives at theend of the rnace, so that the forward buggy may be drawnawa The operation will be readily understood from the foregoingdescription.

The device also providesa supplemental sealing construction.

The invention as a whole is simple, cfli cient, and capable oflong-continued operation without liability to get out of order.

The features of improvement. may be applied to various constructions offurnaces or incorporated with existing structures and may also bechanged or varied by the skilled mechanic to different details; but allsuch changes or variations are to be considered as within the scope ofthe following claims:

What we claim isl. A continuous furnace provided with a longitudinalwater-seal trough and traveling supporting mechanism provided. with aseal ing-flange, arranged to be lowered into and raised from said troughas the traveling mech anism enters and leaves the furnace, substantiallyas set forth. 7

2. A continuous furnace provided with a longitudinal. Water-seal troughalong each inner side and traveling su porting mechanism provided withsealinganges arranged to be loweredinto and raised from. said trough asthe traveling mechanism enters and leaves the furnace, substantially asset forth.

3. A continuous furnace provided along its bottom with horizontal trackssloping upwardly at each end and longitudinalwaterseal troughs along itsinner side walls, with traveling supporting mechanism havingsealing-fianges arranged to be immersed into and raised from thetroughs, substantially as set forth.

4. The combination with a continuous furnace having water-seal troughsalong its inner sides, and a supporting-track along its bottom:' ofcarrying-buggies mounted on the track provided with sealing sflanges,and means for lowering the buggies as they enter the furnace and forraising them as they leave the other end thereof, substantially as setforth.

5. The combination with a continuous furnace having water-seal troughsalong its inner sides, and a supporting-track along its bottom slopingupwardly at each end: of carrying buggies mounted on the track providedwith sealing-flanges arranged to enter within said troughs,substantially as set forth.

6. A continuousifurnace provided with a longitudinal water-seal troughand traveling supporting mechanism rovided with a sealing-ilangearranged to e lowered into and raised from said trough as the travelingmechanism enters and leaves the furnace, and provided along its innerwalls with longitu- 'dinally-arranged resiliently-mounted bearingdevicesadapted to make contact with the sides of said sup orting mechanism,substantially asset fortli,

7. A continuous furnace provided with a longitudinal water-seal troughand traveling supporting mechanism provided with a sealing-fiarigearranged to be lowered into and raised from said trough as the travelingmechroo anism enters and leaves the furnace, and provi (led along itsinner Walls with longitudinallyarranged bearing elements provided atintervals with sup porting-ste1ns, and bearings therefor mounted in thewall" structure and provided with conipression springs arranged to presssaid"bearing elements against the sides of said supgorting mechanism,substantially as set fort r S. The combination with a furnace havingwater-seal troughs along its inner sides and a sup porting-track alongits bottom sloping upwardly at each end: of a series of buggies providedwith sealing-flanges, means for coupling the buggies together, and meansfor uncoupling the foremost buggv as it emerges from the furnace,substantially as set forth.

9. The combination with a furnace having water-seal troughs alongitsinner sides and a cougling-latches having disengaging earns, wit astationary inteiiier'ing-abutrnent arranged to make contact therewith.to eilect the automatic uncoulpling of the buggies,sub

stan'tially as set fort In'testirnony whereof we affix our signatures inpresence oftwc witnesses.

WILLIAM R. MILLER. PAUL VQCOLE. Witnesses:

Cass, S. LEPLEY, Q. "CLARKE.

